Roasting green coffee beans is difficult to control by oven temperature. The direct fire baking method is as follows:

1. Pour coffee beans into the hand net, cover the net, turn on the gas and turn to medium heat.

2. Keep shaking the net from side to side. The size of firepower depends on adjusting the distance between fire and beans. Until it changes from blue-green to light yellow and brown, after heating, dehydration, drying and browning.

3. Cool the coffee beans quickly, vacuum the jar, lift the coffee beans for 24 hours, and let the coffee beans release carbon dioxide.

4. Beans are roasted evenly, and the weight is reduced by 12% compared with raw beans, and it is finished.